umbral | 8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067de

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
16-01-2025 18:59

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General

Target

8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe
Size

231KB
MD5

f70b5e56a09af292d4e909c547f9c8c0
SHA1

577883bdbe8dc9582e15e7a1212b1fe432bafce3
SHA256

8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067de
SHA512

e54ccb56aa6473abd3530493933d5164f2dff02076e0f03443382f02d177a52e318d8d0f432e6a3fb5620eaffd09f2dbf6ccbf9698ba149b149c594fa162d879
SSDEEP

6144:xloZM+rIkd8g+EtXHkv/iD4+Ocip3cw/oeHp0AVO0b8e1mMi:DoZtL+EP8+Ocip3cw/oeHp0AVji

Score

10^/10

umbral discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/976-1-0x0000000000E90000-0x0000000000ED0000-memory.dmp	family_umbral

Umbral
Umbral stealer is an opensource moduler stealer written in C#.
stealer umbral
Umbral family
umbral

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
1932	powershell.exe
2904	powershell.exe
2616	powershell.exe
2932	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe

Deletes itself 1 IoCs

pid	Process
1472	cmd.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
9	discord.com
10	discord.com

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
6	ip-api.com

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
1472	cmd.exe
2848	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2712	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2848	PING.EXE

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
976	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe
2932	powershell.exe
2904	powershell.exe
2616	powershell.exe
1392	powershell.exe
1932	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	976	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe
Token: SeIncreaseQuotaPrivilege	2248	wmic.exe
Token: SeSecurityPrivilege	2248	wmic.exe
Token: SeTakeOwnershipPrivilege	2248	wmic.exe
Token: SeLoadDriverPrivilege	2248	wmic.exe
Token: SeSystemProfilePrivilege	2248	wmic.exe
Token: SeSystemtimePrivilege	2248	wmic.exe
Token: SeProfSingleProcessPrivilege	2248	wmic.exe
Token: SeIncBasePriorityPrivilege	2248	wmic.exe
Token: SeCreatePagefilePrivilege	2248	wmic.exe
Token: SeBackupPrivilege	2248	wmic.exe
Token: SeRestorePrivilege	2248	wmic.exe
Token: SeShutdownPrivilege	2248	wmic.exe
Token: SeDebugPrivilege	2248	wmic.exe
Token: SeSystemEnvironmentPrivilege	2248	wmic.exe
Token: SeRemoteShutdownPrivilege	2248	wmic.exe
Token: SeUndockPrivilege	2248	wmic.exe
Token: SeManageVolumePrivilege	2248	wmic.exe
Token: 33	2248	wmic.exe
Token: 34	2248	wmic.exe
Token: 35	2248	wmic.exe
Token: SeIncreaseQuotaPrivilege	2248	wmic.exe
Token: SeSecurityPrivilege	2248	wmic.exe
Token: SeTakeOwnershipPrivilege	2248	wmic.exe
Token: SeLoadDriverPrivilege	2248	wmic.exe
Token: SeSystemProfilePrivilege	2248	wmic.exe
Token: SeSystemtimePrivilege	2248	wmic.exe
Token: SeProfSingleProcessPrivilege	2248	wmic.exe
Token: SeIncBasePriorityPrivilege	2248	wmic.exe
Token: SeCreatePagefilePrivilege	2248	wmic.exe
Token: SeBackupPrivilege	2248	wmic.exe
Token: SeRestorePrivilege	2248	wmic.exe
Token: SeShutdownPrivilege	2248	wmic.exe
Token: SeDebugPrivilege	2248	wmic.exe
Token: SeSystemEnvironmentPrivilege	2248	wmic.exe
Token: SeRemoteShutdownPrivilege	2248	wmic.exe
Token: SeUndockPrivilege	2248	wmic.exe
Token: SeManageVolumePrivilege	2248	wmic.exe
Token: 33	2248	wmic.exe
Token: 34	2248	wmic.exe
Token: 35	2248	wmic.exe
Token: SeDebugPrivilege	2932	powershell.exe
Token: SeDebugPrivilege	2904	powershell.exe
Token: SeDebugPrivilege	2616	powershell.exe
Token: SeDebugPrivilege	1392	powershell.exe
Token: SeIncreaseQuotaPrivilege	1088	wmic.exe
Token: SeSecurityPrivilege	1088	wmic.exe
Token: SeTakeOwnershipPrivilege	1088	wmic.exe
Token: SeLoadDriverPrivilege	1088	wmic.exe
Token: SeSystemProfilePrivilege	1088	wmic.exe
Token: SeSystemtimePrivilege	1088	wmic.exe
Token: SeProfSingleProcessPrivilege	1088	wmic.exe
Token: SeIncBasePriorityPrivilege	1088	wmic.exe
Token: SeCreatePagefilePrivilege	1088	wmic.exe
Token: SeBackupPrivilege	1088	wmic.exe
Token: SeRestorePrivilege	1088	wmic.exe
Token: SeShutdownPrivilege	1088	wmic.exe
Token: SeDebugPrivilege	1088	wmic.exe
Token: SeSystemEnvironmentPrivilege	1088	wmic.exe
Token: SeRemoteShutdownPrivilege	1088	wmic.exe
Token: SeUndockPrivilege	1088	wmic.exe
Token: SeManageVolumePrivilege	1088	wmic.exe
Token: 33	1088	wmic.exe
Token: 34	1088	wmic.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 976 wrote to memory of 2248	976	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	31
PID 976 wrote to memory of 2248	976	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	31
PID 976 wrote to memory of 2248	976	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	31
PID 976 wrote to memory of 2724	976	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	34
PID 976 wrote to memory of 2724	976	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	34
PID 976 wrote to memory of 2724	976	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	34
PID 976 wrote to memory of 2932	976	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	36
PID 976 wrote to memory of 2932	976	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	36
PID 976 wrote to memory of 2932	976	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	36
PID 976 wrote to memory of 2904	976	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	38
PID 976 wrote to memory of 2904	976	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	38
PID 976 wrote to memory of 2904	976	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	38
PID 976 wrote to memory of 2616	976	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	40
PID 976 wrote to memory of 2616	976	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	40
PID 976 wrote to memory of 2616	976	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	40
PID 976 wrote to memory of 1392	976	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	42
PID 976 wrote to memory of 1392	976	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	42
PID 976 wrote to memory of 1392	976	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	42
PID 976 wrote to memory of 1088	976	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	44
PID 976 wrote to memory of 1088	976	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	44
PID 976 wrote to memory of 1088	976	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	44
PID 976 wrote to memory of 2020	976	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	46
PID 976 wrote to memory of 2020	976	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	46
PID 976 wrote to memory of 2020	976	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	46
PID 976 wrote to memory of 1740	976	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	48
PID 976 wrote to memory of 1740	976	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	48
PID 976 wrote to memory of 1740	976	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	48
PID 976 wrote to memory of 1932	976	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	50
PID 976 wrote to memory of 1932	976	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	50
PID 976 wrote to memory of 1932	976	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	50
PID 976 wrote to memory of 2712	976	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	52
PID 976 wrote to memory of 2712	976	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	52
PID 976 wrote to memory of 2712	976	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	52
PID 976 wrote to memory of 1472	976	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	54
PID 976 wrote to memory of 1472	976	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	54
PID 976 wrote to memory of 1472	976	8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe	54
PID 1472 wrote to memory of 2848	1472	cmd.exe	56
PID 1472 wrote to memory of 2848	1472	cmd.exe	56
PID 1472 wrote to memory of 2848	1472	cmd.exe	56

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2724	attrib.exe

C:\Users\Admin\AppData\Local\Temp\8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe
"C:\Users\Admin\AppData\Local\Temp\8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:976
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2248
- C:\Windows\system32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe"
  2⤵
  - Views/modifies file attributes
  PID:2724
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2932
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Set-MpPreference -DisableIntrusionPreventionSystem $true -DisableIOAVProtection $true -DisableRealtimeMonitoring $true -DisableScriptScanning $true -EnableControlledFolderAccess Disabled -EnableNetworkProtection AuditMode -Force -MAPSReporting Disabled -SubmitSamplesConsent NeverSend && powershell Set-MpPreference -SubmitSamplesConsent 2
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2904
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2616
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Get-ItemPropertyValue -Path HKLN:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1392
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1088
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:2020
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:1740
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  PID:1932
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2712
- C:\Windows\system32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\8fd22c5acb3144dbaa5ab3f9dd5901eb6f3beef67e72ea431246c6a790c067deN.exe" && pause
  2⤵
  - Deletes itself
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:1472
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2848

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Remote System Discovery

T1018

System Information Discovery

T1082

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
f4553fb6b4462d130162285a10f8553b

SHA1
fcbbdcf129e1e3d6edb96ce2f2a68339b9ab2bdb

SHA256
54ab727bdb32bd259b12bc867b5a9d0b57babdd6206694c45681eff4cd2b091f

SHA512
4745c43c8913ed20d934657cca0c3ad8aa42eb6ff5aa05bbe3b110289973f539fa7f2b94f1010e60b6f0c391b9986da324739c2d45e7f20ea21c498b18eac22e

Download Submit
memory/976-0-0x000007FEF5FD3000-0x000007FEF5FD4000-memory.dmp

Filesize
4KB

Download
memory/976-1-0x0000000000E90000-0x0000000000ED0000-memory.dmp

Filesize
256KB

Download
memory/976-2-0x000007FEF5FD0000-0x000007FEF69BC000-memory.dmp

Filesize
9.9MB

Download
memory/976-48-0x000007FEF5FD0000-0x000007FEF69BC000-memory.dmp

Filesize
9.9MB

Download
memory/1932-44-0x0000000002C20000-0x0000000002C28000-memory.dmp

Filesize
32KB

Download
memory/2904-14-0x000000001B560000-0x000000001B842000-memory.dmp

Filesize
2.9MB

Download
memory/2904-15-0x0000000002670000-0x0000000002678000-memory.dmp

Filesize
32KB

Download
memory/2932-7-0x000000001B630000-0x000000001B912000-memory.dmp

Filesize
2.9MB

Download
memory/2932-8-0x0000000001DA0000-0x0000000001DA8000-memory.dmp

Filesize
32KB

Download